@font-face {
  font-family: "Instrument Sans";
  src: url("../_shared/fonts/InstrumentSans-Regular.ttf") format("truetype");
  font-weight: 400;
}

@font-face {
  font-family: "Instrument Sans";
  src: url("../_shared/fonts/InstrumentSans-Bold.ttf") format("truetype");
  font-weight: 700;
}

:root {
  --bg: #080808;
  --bg2: #111111;
  --ink: #f6f3ec;
  --muted: #a6a29a;
  --rule: rgba(246, 243, 236, 0.14);
  --accent: #f6f3ec;
  --accent2: #b9b1a0;
  --paper: #e9e4d8;
  --paper-ink: #111111;
  --glass: rgba(18, 18, 18, 0.62);
  --shadow: rgba(0, 0, 0, 0.44);
  --radius-xl: 34px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --max: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 50% -20%, rgba(255, 255, 255, 0.14), transparent 34rem),
    linear-gradient(180deg, #050505, var(--bg) 42rem, #0e0e0e);
  color: var(--ink);
  font-family: "Instrument Sans", -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  opacity: 0.32;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, transparent, black 15%, black 70%, transparent);
}

a {
  color: inherit;
  text-decoration: none;
}

img,
video {
  display: block;
  max-width: 100%;
}

button,
input {
  font: inherit;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: 200;
  pointer-events: none;
  opacity: 0.08;
  background-image:
    repeating-radial-gradient(circle at 17% 32%, #fff 0 1px, transparent 1px 3px),
    repeating-linear-gradient(45deg, transparent 0 7px, rgba(255,255,255,0.45) 7px 8px);
  mix-blend-mode: overlay;
}

.cursor-light {
  position: fixed;
  width: 38vw;
  height: 38vw;
  min-width: 340px;
  min-height: 340px;
  left: var(--mx, 50%);
  top: var(--my, 10%);
  z-index: -2;
  transform: translate(-50%, -50%);
  pointer-events: none;
  background: radial-gradient(circle, rgba(255,255,255,0.16), transparent 62%);
  filter: blur(22px);
  transition: opacity 300ms ease;
}

.progress {
  position: fixed;
  left: 0;
  top: 0;
  z-index: 300;
  height: 2px;
  width: var(--progress, 0%);
  background: var(--accent);
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 400;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--paper-ink);
  transform: translateY(-140%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: fixed;
  inset: 16px 0 auto;
  z-index: 120;
  pointer-events: none;
}

.nav {
  width: min(var(--max), calc(100% - 32px));
  min-height: 58px;
  margin: 0 auto;
  padding: 8px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: rgba(10, 10, 10, 0.56);
  backdrop-filter: blur(24px);
  box-shadow: 0 18px 60px var(--shadow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  pointer-events: auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding-left: 10px;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border: 1px solid var(--rule);
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(255,255,255,0.08);
}

.nav-links {
  display: flex;
  gap: 2px;
}

.nav-links a {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 14px;
  transition: background 260ms ease, color 260ms ease, transform 260ms ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--paper-ink);
  background: var(--accent);
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--rule);
  border-radius: 50%;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}

.menu-toggle span,
.menu-toggle span::before,
.menu-toggle span::after {
  display: block;
  width: 16px;
  height: 1px;
  border-radius: 999px;
  background: var(--ink);
  margin: auto;
  transition: transform 240ms ease, opacity 240ms ease;
}

.menu-toggle span {
  position: relative;
}

.menu-toggle span::before,
.menu-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
}

.menu-toggle span::before {
  top: -6px;
}

.menu-toggle span::after {
  top: 6px;
}

body.nav-open .menu-toggle span {
  background: transparent;
}

body.nav-open .menu-toggle span::before {
  transform: translateY(6px) rotate(45deg);
}

body.nav-open .menu-toggle span::after {
  transform: translateY(-6px) rotate(-45deg);
}

.section {
  position: relative;
  padding: 128px 0;
  min-height: 100vh;
}

.section-inner {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  min-height: 112vh;
  display: grid;
  align-items: end;
  overflow: hidden;
  padding-top: 112px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.15) contrast(1.12) brightness(0.64);
  transform: scale(1.06);
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(0,0,0,0.34), rgba(0,0,0,0.88) 86%),
    radial-gradient(circle at 50% 45%, transparent, rgba(0,0,0,0.72) 72%);
}

.hero-copy {
  padding-bottom: 82px;
}

.eyebrow {
  margin: 0 0 22px;
  color: var(--accent2);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 12px;
}

.hero-title {
  display: grid;
  gap: 0;
  margin: 0;
  font-size: clamp(72px, 15vw, 186px);
  line-height: 0.84;
  letter-spacing: -0.09em;
}

.hero-title span:nth-child(2) {
  margin-left: clamp(44px, 12vw, 180px);
  color: transparent;
  -webkit-text-stroke: 1px rgba(246, 243, 236, 0.72);
}

.hero-subtitle {
  margin: 28px 0 0;
  max-width: 780px;
  color: var(--ink);
  font-size: clamp(23px, 4vw, 52px);
  line-height: 1.06;
  letter-spacing: -0.06em;
}

.hero-intro {
  max-width: 560px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(16px, 1.8vw, 20px);
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: var(--accent);
  color: var(--paper-ink);
  font-weight: 700;
  transition: transform 260ms ease, background 260ms ease, color 260ms ease;
}

.btn:hover {
  transform: translateY(-3px);
}

.btn.secondary {
  color: var(--ink);
  background: transparent;
  border-color: var(--rule);
}

.btn.secondary:hover {
  background: rgba(255,255,255,0.08);
}

.metrics-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 74px;
  border: 1px solid var(--rule);
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--rule);
}

.metric {
  min-height: 128px;
  padding: 24px;
  background: rgba(8,8,8,0.72);
  backdrop-filter: blur(18px);
}

.metric strong {
  display: block;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1;
  letter-spacing: -0.08em;
}

.metric span {
  display: block;
  margin-top: 10px;
  color: var(--muted);
}

.section-head {
  max-width: 890px;
  margin-bottom: 58px;
}

.section-kicker {
  margin: 0 0 16px;
  color: var(--accent2);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 12px;
}

.section-title {
  margin: 0;
  font-size: clamp(50px, 10vw, 128px);
  line-height: 0.9;
  letter-spacing: -0.09em;
}

.section-lead {
  max-width: 760px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2.6vw, 30px);
  line-height: 1.18;
  letter-spacing: -0.045em;
}

.about-composition {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 28px;
  align-items: stretch;
}

.portrait-frame,
.editorial-panel,
.project-block,
.work-card,
.contact-card,
.patent-frame {
  border: 1px solid var(--rule);
  border-radius: var(--radius-xl);
  background: rgba(255,255,255,0.055);
  box-shadow: 0 24px 90px var(--shadow);
  overflow: hidden;
}

.portrait-frame {
  position: relative;
  min-height: 590px;
}

.portrait-frame img {
  width: 100%;
  height: 100%;
  min-height: 590px;
  object-fit: cover;
  filter: grayscale(0.18) contrast(1.06);
}

.portrait-frame figcaption {
  position: absolute;
  inset: auto 18px 18px;
  padding: 18px;
  border: 1px solid var(--rule);
  border-radius: 22px;
  background: rgba(0,0,0,0.58);
  backdrop-filter: blur(20px);
  color: var(--ink);
}

.portrait-frame strong {
  display: block;
  font-size: 26px;
  letter-spacing: -0.06em;
}

.portrait-frame span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
}

.editorial-panel {
  padding: clamp(26px, 5vw, 52px);
  display: grid;
  align-content: space-between;
}

.timeline {
  display: grid;
  gap: 28px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 24px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--rule);
}

.timeline-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.timeline-item time {
  color: var(--accent2);
  font-size: 14px;
}

.timeline-item h3,
.project-block h3,
.work-card h3,
.contact-card h3 {
  margin: 0 0 10px;
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.02;
  letter-spacing: -0.065em;
}

.timeline-item p,
.project-block p,
.work-card p,
.contact-card p {
  margin: 0;
  color: var(--muted);
}

.skills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
}

.skill-pill {
  padding: 10px 14px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  color: var(--ink);
  background: rgba(255,255,255,0.05);
}

.projects-stage {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 28px;
}

.project-showcase {
  position: sticky;
  top: 96px;
  align-self: start;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--rule);
  min-height: 620px;
  background: var(--bg2);
}

.project-showcase img {
  width: 100%;
  height: 620px;
  object-fit: cover;
  filter: grayscale(0.1) contrast(1.08) brightness(0.82);
}

.project-showcase::after {
  content: "现场 · 秀场 · 传播";
  position: absolute;
  left: 24px;
  bottom: 24px;
  padding: 10px 14px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(16px);
}

.project-list-wrap {
  display: grid;
  gap: 18px;
}

.project-block {
  padding: 30px;
  min-height: 230px;
  transition: transform 320ms ease, background 320ms ease, border-color 320ms ease;
}

.project-block:hover {
  transform: translateY(-6px);
  background: rgba(255,255,255,0.085);
  border-color: rgba(246,243,236,0.32);
}

.project-meta {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--accent2);
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.patent-grid {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 28px;
  margin-top: 28px;
}

.patent-frame {
  background: var(--paper);
  padding: 12px;
}

.patent-frame img {
  border-radius: 24px;
  width: 100%;
}

.patent-note {
  padding: clamp(26px, 5vw, 52px);
  border: 1px solid var(--rule);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at 88% 12%, rgba(255,255,255,0.16), transparent 18rem),
    rgba(255,255,255,0.055);
}

.patent-note h3 {
  margin: 0;
  font-size: clamp(32px, 5vw, 68px);
  line-height: 0.96;
  letter-spacing: -0.08em;
}

.patent-note p {
  max-width: 620px;
  margin: 24px 0 0;
  color: var(--muted);
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.work-card {
  background: rgba(255,255,255,0.045);
  transition: transform 320ms ease, border-color 320ms ease;
}

.work-card:hover {
  transform: translateY(-8px);
  border-color: rgba(246,243,236,0.3);
}

.work-media {
  position: relative;
  background: #000;
}

.work-media video {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #000;
}

.work-tag {
  position: absolute;
  left: 18px;
  top: 18px;
  padding: 8px 11px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: rgba(0,0,0,0.54);
  backdrop-filter: blur(16px);
  color: var(--ink);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.work-body {
  padding: 26px;
}

.work-controls {
  margin-top: 18px;
  border-top: 1px solid var(--rule);
  padding-top: 16px;
}

.work-controls summary {
  cursor: pointer;
  color: var(--accent2);
}

.upload-box {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.upload-box label {
  color: var(--muted);
  font-size: 13px;
}

.upload-box input[type="file"],
.upload-box input[type="url"] {
  width: 100%;
  border: 1px solid var(--rule);
  border-radius: 14px;
  padding: 12px;
  color: var(--ink);
  background: rgba(255,255,255,0.06);
}

.mini-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.mini-btn {
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  padding: 9px 13px;
  cursor: pointer;
}

.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.contact-card {
  padding: clamp(28px, 5vw, 54px);
}

.contact-list {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.contact-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}

.contact-item span {
  color: var(--muted);
}

.contact-item strong {
  text-align: right;
  letter-spacing: -0.03em;
}

.manifesto {
  min-height: 100%;
  border-radius: var(--radius-xl);
  padding: clamp(32px, 6vw, 70px);
  background:
    radial-gradient(circle at 20% 10%, rgba(255,255,255,0.18), transparent 22rem),
    var(--paper);
  color: var(--paper-ink);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.manifesto h2 {
  margin: 0;
  font-size: clamp(52px, 8vw, 96px);
  line-height: 0.88;
  letter-spacing: -0.09em;
}

.manifesto p {
  max-width: 420px;
  margin: 34px 0 0;
  color: rgba(17,17,17,0.66);
}

.site-footer {
  padding: 36px 0 56px;
  color: var(--muted);
  text-align: center;
}

.reveal {
  opacity: 0;
  transform: translateY(36px) scale(0.985);
  filter: blur(10px);
  transition: opacity 820ms ease, transform 820ms ease, filter 820ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0);
}

.float-in {
  animation: floatIn 1.1s cubic-bezier(.2,.7,.1,1) both;
}

@keyframes floatIn {
  from {
    opacity: 0;
    transform: translateY(42px);
    filter: blur(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}

@media (max-width: 980px) {
  .about-composition,
  .projects-stage,
  .patent-grid,
  .contact-wrap {
    grid-template-columns: 1fr;
  }

  .project-showcase {
    position: relative;
    top: 0;
    min-height: auto;
  }

  .project-showcase img {
    height: auto;
    aspect-ratio: 16 / 11;
  }

  .works-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .site-header {
    inset: 10px 0 auto;
  }

  .nav {
    width: min(100% - 20px, var(--max));
    border-radius: 28px;
  }

  .brand span:last-child {
    display: none;
  }

  .menu-toggle {
    display: grid;
  }

  .nav-links {
    position: fixed;
    top: 72px;
    left: 10px;
    right: 10px;
    display: grid;
    padding: 12px;
    border: 1px solid var(--rule);
    border-radius: 26px;
    background: rgba(10, 10, 10, 0.82);
    backdrop-filter: blur(24px);
    opacity: 0;
    transform: translateY(-12px);
    pointer-events: none;
    transition: opacity 240ms ease, transform 240ms ease;
  }

  body.nav-open .nav-links {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav-links a {
    padding: 14px;
  }

  .section {
    padding: 96px 0;
  }

  .section-inner {
    width: min(100% - 26px, var(--max));
  }

  .hero {
    min-height: 104vh;
  }

  .hero-copy {
    padding-bottom: 52px;
  }

  .hero-title {
    font-size: clamp(70px, 22vw, 108px);
  }

  .hero-title span:nth-child(2) {
    margin-left: 24px;
  }

  .metrics-strip {
    grid-template-columns: 1fr;
  }

  .portrait-frame,
  .portrait-frame img {
    min-height: 440px;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .contact-item {
    display: grid;
  }

  .contact-item strong {
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
    filter: none;
  }
}


.video-link-panel {
  position: relative;
  overflow: hidden;
  background: #000;
}

.video-link-panel img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: brightness(0.72) contrast(1.08);
  transition: transform 420ms ease, filter 420ms ease;
}

.work-card:hover .video-link-panel img {
  transform: scale(1.035);
  filter: brightness(0.86) contrast(1.1);
}

.video-link-overlay {
  position: absolute;
  inset: auto 18px 18px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: rgba(0,0,0,0.62);
  backdrop-filter: blur(18px);
}

.play-link-btn {
  border: 0;
  border-radius: 999px;
  padding: 10px 14px;
  background: var(--accent);
  color: var(--paper-ink);
  font-weight: 700;
  cursor: pointer;
}

.video-link-overlay span {
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 560px) {
  .video-link-overlay {
    align-items: stretch;
    border-radius: 22px;
    flex-direction: column;
  }
}